Based on ISO9000 standards, the company strictly manages and controls the procurement process and suppliers of raw materials, auxiliary materials, machine materials, accessories, and other major materials. The company has established and implemented a supplier selection, evaluation, and tracking system. Suppliers must undergo meticulous and all-around audits and evaluations before they can enter the Group's qualified supplier list. They are tracked for their effectiveness and quality stability in use to ensure that the selected suppliers can meet the company's requirements in a long-term and stable manner.